US379938A - Sail wat snow plow - Google Patents

Description

(No Model.) 7 v A. G. BAILEY.

- RAILWAY snow P OW;

'PatentedMar, 2'7, 1888 q&

UNITED STATES.

ASA G. DAILEY, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO JAMES 7 PATENT OFFICE.

D. HAWKS, OF SAME PLACE.

RAILWAY SNOW-PLOW.

SPECIFICATION forming part of Letters Patent N 0.. 379,938, dated March 27, 1888. I

Application filed February 26, 1885. Serial No. 157,117. (No model.)

To all whom it may concern.-

Be it known that I, ASA G. DAILEY, of Detroit, in the county of Wayne and State of Michigan, have invented anew and useful Improvement in Railway Snow-Flows, of which the following is a specification.

My invention consists in an improvement in railway snow-plows, fully pointed out in the claims.

Figure l is a plan view, part of the car being broken away. Fig. 2 is a side elevation, and s Fig. 3a longitudinal vertical section, of Fig. 1. Fig. 4 is a front elevation.

A represents an ordinary flat car, one end I 5 thereof being broken away to enlarge the drawlngs.

G represents a strong beam fastened across the top of one end of the carA, and E E represent similar beams fastened across the car at different points, the beam E being usually put somewhat more than half the length of the car from beam G.

D represents a long beam of strong timber which is pivoted to beamE by a strong pivot, S, and extends forward of the front of the car, resting on beams E G. To the projecting end of beam D is secured a snow-plow, which I usually build triangular in shape, of three upright posts, 0 O 0, strongly framed together, and covered with heavy planking to make the sides B 0, thus forming a triangle open toward the car. The posts 0 at the open side of the triangle have triangular pieces 0 0 fastened to them to make square sides, which fit rather closely on each end of a beam,P, bolted across the end of the car, and hold the plow against lateral motion.

U U represent knives fastened to the lower edge of each side of the plow, and I usually make-them the full length of the sides of the plow.

V V represent two flangers or knives, which are fastened to the lower edge of the plow and extend below the level of the rails R B when 45 the plow is at work, and of such length that they will practically cover the whole track between the rails.

Y represents a couple of blocks fastened to beam E, one on each side of beam D, and

50 across them is fastened a strong plate of wood or iron, J, on which is secured a cylinder, K,

from the pump to the reservoir. is complicated, and, as it is not of myinvention 85 having a piston and piston-rod, Z. I employ for this cylinder one of the cylinders made for the well-known Westinghouse-brake system.

I represents a crosshead attached to the end of the pistonrod, and to the ends of crosshead I are pivoted two connecting-rods, X X, the lower ends of which are pivoted to the ends of two levers, H H. The other'ends of said levers H H are fulcrumed on the top of the beam G, and at a point between the two ends said levers are pivoted to bear'n D at h. dusually so proportion the two arms of levers iH thatthepower works on the long arms, as

shown in the drawings; but this of course rejquires a piston travel greater than the necesv sary travel of point h. Thisis a matter that is readily understood and adapted to the means at hand by any fair mechanic.

L represents a reservoir for compressed air, .70

having a pipe, N, leading therefrom to the cylinder below the piston, and another pipe, N, leads from the ordinary compressed-air reservoir used on all engines fitted with the Westinghouse-brake system to the reservoir L. 7 5

M represents a triple valve, such as is used .in said brake system, to make the operation of the brake automatic, whereby the cylinder 1 is operated not by air forced directly from an air-pump on the engine, but by air first forced 8ov by said air-pump into the reservoir L, and from thence admitted into the cylinder by a reduction of pressure in the air-pipe leading This valve and its construction and operation are well known, I have not deemed a detailed drawing or description thereof necessary.

The valve M and reservoir L may be omitted, if desired, and the cylinder supplied with compressed air directly from a pump or reservoir on the engine; but I prefer to use the valve and reservoir as an additional safeguard against accident. l

-W' represents an ordinary four -wheeled truck.

The operation of my invention is as follows; In operating a snow-plow, which also acts as a flanger and cuts the snow out from between the rails, it is-necessary to lift the plow when- '100:

or frog and something would break. This end I accomplish by the means which I have described.

All, or nearly all, modern passenger-engines are fitted with an airpu mp and reservoir and connecting-pipes to couple to the pipes leading to the ail-brakes on passenger-coaches. In my invention the engine is coupled to the car A, and its air-pipe is connected to the air-pipe N, and the cylinder K and piston and piston- 'rod Z operate precisely as do the correspondclear from the track, as shown in Fig.3. When the air is allowed to escape from the cylinder K, the plow falls back to its working position, as shown in Figs. 1 and 2.

What I claim as myinvention, and desire to secure by Letters Patent, is-

1. The combination of a track-cleaner and pneumatic appliances for operating the same.

2. The combination of a snow-plow hung on a support pivoted to acar, the air-cylinder and its piston; and levers or bars connected with said piston and connections to the support of the plow.

3. In combination, with a snow-plow hung on a pivoted support, a cylinder and piston connected with said support and operated by power from anysuitable source, substantially as and for the purposes set forth.

4. The combination of asnow-plow hung on a support pivoted to a car, a cylindersecured on said car and provided with a pipe whereby it can be connected directly or indirectly with an air-pump, a piston movable in said cylinder 40 and having a piston-rod connected with one or more levers,which are also connected with said pivoted support, whereby an outward motion of said piston raises said plow and an inward motion lowers said plow, substan tially as shown and described.

5. In a snow-plow pivoted to the front of a car, the combination of the posts 0 0, having pieces 0 0 fastened thereto, with the beam P, whereby lateral motion of the plow is prevented, substantially as shown and described.

6. The combination of asuow-plow pivoted to the front of a car and adapted to be raised and lowered, knivesU U, fastened to the lower edge of each side of the plow, and knives V V, fastened to the lower edge of the plow and extending below the level of the rails, substantially as described.

7. The combination of the car A, snow-plow B 0, carried on the beam D, pivoted to the car at S, beams E E, fastened across said car and supporting beam D, blocks Y, secured to beam E, and carrying-plate J. cylinder K, having a piston and piston-rod, Z, cross-head I, connecting-rods X, and levers H, pivotally secured to beam D and fulcrumed on beam G, substantially as shown and described.

8. In combination with a snow-plow hung on a support pivoted to a car, whereby said plow can be raised or lowered, a cylinder and piston having the piston-rod thereof connected with said pivoted support, a reservoir for compressed air secured to said ear and connected with said cylinder, and a valve adapted to admit compressed air from said reservoir-to said cylinder,substantially as shown and described.

ASA G. DAILEY.

Witnesses:

CYRUS E. LOTHBOP, GEO. H. LOTHROP.

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